Lexicon
Intervals
Macrostrat
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Atunian
1731
Type
Age
Age range
300.5–274.37
Ma
International Timescale
Permian
Guadalupian
Roadian
Cisuralian
Kungurian
Artinskian
Sakmarian
Asselian
Carboniferous
Pennsylvanian
Gzhelian
Western Europe Regional
Atunian
Stephanian C
Stephanian B
Stephanian A
300
298
296
294
292
290
288
286
284
282
280
278
276
274
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